Evaluation of Ozone Formation Potential of Formaldehyde Using Smog Chamber Data
Formaldehyde (HCHO) is one of the important O3 precursors in the atmospheric environment, but the mechanism for HCHO photochemical reactions is not very clear now. In the present study, the effects of relative humidity (RH) and initial VOC/NOx ratio (RCN)
Hailiang Zhang, Yongfu Xu, Long Jia
doaj +1 more source
The effect of wall cooling on a compressible turbulent boundary layer [PDF]
Experimental results are presented for two turbulent boundary-layer experiments conducted at a free-stream Mach number of 4 with wall cooling. The first experiment examines a constant-temperature cold-wall boundary layer subjected to adverse and ...
Gran, R. L., Kubota, T., Lewis, J. E.
core +1 more source
Wind-driven mixing below the oceanic mixed layer [PDF]
This study describes the turbulent processes in the upper ocean boundary layer forced by a constant surface stress in the absence of the Coriolis force using large-eddy simulation.
Belcher, Stephen, Grant, Alan L. M.
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An improved process-oriented hydro-biogeochemical model for simulating dynamic fluxes of methane and nitrous oxide in alpine ecosystems with seasonally frozen soils [PDF]
The hydro-biogeochemical model Catchment Nutrient Management Model – DeNitrification-DeComposition (CNMM-DNDC) was established to simultaneously quantify ecosystem productivity and losses of nitrogen and carbon at the site or catchment scale.
W. Zhang +14 more
doaj +1 more source
Turbulent dispersion in cloud-topped boundary layers [PDF]
Compared to dry boundary layers, dispersion in cloud-topped boundary layers has received less attention. In this LES based numerical study we investigate the dispersion of a passive tracer in the form of Lagrangian particles for four kinds of atmospheric
Heus, T. +3 more
core +4 more sources
The concentrations of surface ozone (O3) in eastern China have increased significantly in recent years, resulting in the earlier appearance of more serious O3 pollution.
Jialin Li +6 more
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A two-way coupled regional urban–street network air quality model system for Beijing, China [PDF]
Owing to the substantial traffic emissions in urban areas, especially near road areas, the concentrations of pollutants, such as ozone (O3) and its precursors, have a large difference compared to regional averages, and their distributions cannot be ...
T. Wang +13 more
doaj +1 more source
Controls on boundary layer ventilation: Boundary layer processes and large-scale dynamics [PDF]
Midlatitude cyclones are important contributors to boundary layer ventilation. However, it is uncertain how efficient such systems are at transporting pollutants out of the boundary layer, and variations between cyclones are unexplained. In this study 15
Adamson +37 more
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Wet and dry deposition of atmospheric nitrogen at ten sites in Northern China [PDF]
Emissions of reactive nitrogen (N) species can affect surrounding ecosystems via atmospheric deposition. However, few long-term and multi-site measurements have focused on both the wet and the dry deposition of individual N species in large areas of ...
Y. P. Pan, Y. S. Wang, G. Q. Tang, D. Wu
doaj +1 more source
Ozone weekend effects in the Beijing–Tianjin–Hebei metropolitan area, China [PDF]
The ozone weekend effect (OWE) was first investigated in the metropolitan area of Beijing–Tianjin–Hebei (BTH), China, using in situ measurements from the Atmospheric Environment Monitoring Network from July 2009 to August 2011.
Y. H. Wang +11 more
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